CN101108750A - Membrane and ultraviolet disinfection combined multiple barrier technique - Google Patents
Membrane and ultraviolet disinfection combined multiple barrier technique Download PDFInfo
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- CN101108750A CN101108750A CNA200610106675XA CN200610106675A CN101108750A CN 101108750 A CN101108750 A CN 101108750A CN A200610106675X A CNA200610106675X A CN A200610106675XA CN 200610106675 A CN200610106675 A CN 200610106675A CN 101108750 A CN101108750 A CN 101108750A
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- membrane
- ultraviolet disinfection
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- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 32
- 239000012528 membrane Substances 0.000 title claims abstract description 21
- 230000004888 barrier function Effects 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 title claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 47
- 244000005700 microbiome Species 0.000 abstract description 9
- 239000006227 byproduct Substances 0.000 abstract description 5
- 239000010865 sewage Substances 0.000 abstract description 5
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000010453 quartz Substances 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000011882 ultra-fine particle Substances 0.000 abstract 1
- 230000003313 weakening effect Effects 0.000 abstract 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 10
- 229910052801 chlorine Inorganic materials 0.000 description 10
- 239000000460 chlorine Substances 0.000 description 10
- 239000000645 desinfectant Substances 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 235000020188 drinking water Nutrition 0.000 description 6
- 239000003651 drinking water Substances 0.000 description 6
- 230000036541 health Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 244000000010 microbial pathogen Species 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 235000014036 Castanea Nutrition 0.000 description 2
- 241001070941 Castanea Species 0.000 description 2
- 241000223935 Cryptosporidium Species 0.000 description 2
- 241000224467 Giardia intestinalis Species 0.000 description 2
- 230000009849 deactivation Effects 0.000 description 2
- 230000000249 desinfective effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000035622 drinking Effects 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 229940085435 giardia lamblia Drugs 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- LLPOLZWFYMWNKH-CMKMFDCUSA-N hydrocodone Chemical compound C([C@H]1[C@H](N(CC[C@@]112)C)C3)CC(=O)[C@@H]1OC1=C2C3=CC=C1OC LLPOLZWFYMWNKH-CMKMFDCUSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 102000039446 nucleic acids Human genes 0.000 description 2
- 108020004707 nucleic acids Proteins 0.000 description 2
- 150000007523 nucleic acids Chemical class 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 101100532679 Caenorhabditis elegans scc-1 gene Proteins 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- 206010008631 Cholera Diseases 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000447394 Desmos Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 101100028920 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) cfp gene Proteins 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 208000037386 Typhoid Diseases 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 159000000013 aluminium salts Chemical class 0.000 description 1
- 229910000329 aluminium sulfate Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 101150053100 cls1 gene Proteins 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 208000001848 dysentery Diseases 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- ZXQYGBMAQZUVMI-GCMPRSNUSA-N gamma-cyhalothrin Chemical compound CC1(C)[C@@H](\C=C(/Cl)C(F)(F)F)[C@H]1C(=O)O[C@H](C#N)C1=CC=CC(OC=2C=CC=CC=2)=C1 ZXQYGBMAQZUVMI-GCMPRSNUSA-N 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002703 mutagenesis Methods 0.000 description 1
- 231100000350 mutagenesis Toxicity 0.000 description 1
- 150000002896 organic halogen compounds Chemical class 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
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- 238000001243 protein synthesis Methods 0.000 description 1
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- 238000009287 sand filtration Methods 0.000 description 1
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- 201000008297 typhoid fever Diseases 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention provides a membrane and ultraviolet disinfection combined multiple barrier technology, which is characterized in that: the invention can use the membrane technology and the ultraviolet disinfection technology at the same time; the membrane technology is firstly adopted to isolate the ultrafine particle in the water and then the ultraviolet disinfection technology is adopted to kill the microorganism in the water. Adopting the membrane and ultraviolet disinfection combined multiple barrier technology of the invention can use the membrane technology and the ultraviolet disinfection technology simultaneously in the sewage depth disposal field and make use of the advantages of each technology, which ensures that the outlet water quality meets the stipulation of national standards, greatly reduces the dosing quantity of the liquid chlorine, decreases the production of the disinfection by-products, increases the ultraviolet projection capacity, prolongs the cleaning period of the quartz sleeves and enormously weakening the shielding protection effect of the particulate matters on the microorganism.
Description
Technical field
The present invention relates to a kind of green technology, especially a kind of water technology.
Background technology
Along with the development of industrial society, the nature water source has been subjected to generally polluting, the deleterious effects of drinking-water quality HUMAN HEALTH.Human history is for the first time contacted directly water quality and HUMAN HEALTH in the middle of the 19th century, recognizes that the transmissible diseases such as cholera, typhoid fever, dysentery of serious harm life are that microorganism is water-borne by drinking.Be the protection human health, people try to explore handling technology of water supply.Along with development economic and society, people improve constantly the requirement of drinking water quality, continue to use the traditional water supply process based on coagulation-precipitate-filter-sterilize in more than 100 year, and have been difficult to satisfy the requirement of the water quality standard of increasingly stringent.The current optimization sterilization mainly comprises optimizes the conventional chlorine disinfectant and the disinfection technology of other modes.
After finding that chlorine can deactivation water passes pathogenic microorganism the beginning of this century, chlorine disinfectant is being used widely in giving water treatment, becomes one of important scientific-technical progress of 20th century protection HUMAN HEALTH.In China, most secondary effluent of municipal sewage plant and reuse water are handled and are also being continued to use the chlorination technology.Chlorine disinfectant is playing vital role aspect the aquatic pathophoresis of prevention, the protection HUMAN HEALTH.
But it is found that in recent years the chlorine disinfectant meeting produces the cholorination by product with carcinogenesis, this water of long-term drinking will constitute a threat to HUMAN HEALTH; Free chlorine in the sewage and organism react and can generate miscellaneous Organohalogen compounds, and these halogenide are to have mutagenesis, carcinogenic and deforming three to cause compound.Because it is difficult to biological degradation, becomes the lasting pollutent of environment the most at last.
People find that also because the existence that the tap water biology can assimilate organic carbon, microbial film can be grown and form to pathogenic microorganisms such as the giardia lamblia in the water, Cryptosporidium in pipe network, even the very high regrowth that also is difficult to control fully bacterium of residual chlorine amount in the pipe network.That is to say that these pathogenic microorganisms have chlorine resistance, chlorine disinfectant is difficult to deactivation.These pathogenic microorganisms spread into waste water through the crowd, are discharged in the environment with wastewater effluent.Therefore people's other high-effective disinfecting technology that begins one's study substitutes chlorine disinfectant technology, guarantees the microbial safety and the chemical safety of water simultaneously.
In recent years, membrane technique is promoted rapidly in water treatment field, adopts the stable effluent quality after membrane technique is handled, and turbidity is low, and suspended substance is almost nil.Membrane technique has that processing efficiency height, technical process are short, easily control automatically, floor space is little, effluent quality good, sludge yield is low and the incomparable advantage of traditional technology such as level of automation height, under the dual background of shortage of water resources and perfect existing water feeding system, it can be used as a kind of good middle water reuse and tap water advanced treatment technology.
People recognize again in recent years, Cryptosporidium, and giardia lamblia stiles and legion's virus can be easily by ultraviolet inactivations, and ultraviolet ray is used for the outburst that wastewater effluent and drinking water disinfection can ward off disease.
Ultraviolet ray (UV) disinfectant dominant mechanism is to utilize the UV-light of wavelength 254nm and near wavelength region may thereof that microorganism is shone, biological intravital nucleic acid has absorbed the energy of UV-light and has changed self structure, destroyed the function of nucleic acid, biomembranous penetrating power and desmo enzyme are changed, stop protein synthesis and make microorganism irreproducible.This sterilization method need not add any chemical agent, do not produce disinfection byproduct (DBP), also can not increase the genetoxic of pollutent, be a kind of green disinfection way of compliance with environmental protection requirements, uses on a large scale in the tap water and the middle water reuse field of countries and regions such as Europe, the U.S..
But membrane technique can not killing microorganisms, and the ultraviolet-sterilization technology can not be isolated fine particle, and these problems have constituted serious threat to safety of drinking water, so the optimization of disinfection technology and develop into very urgent problem.
Summary of the invention
The technical problem to be solved in the present invention is to overcome needs to throw in liquid chlorine and killing microorganisms and isolate the disadvantage of fine particle simultaneously in the traditional water treatment technology.
The invention provides a kind of film and ultraviolet disinfection combined multiple barrier technique for this reason, it is characterized in that: it adopts membrane technique and ultraviolet-sterilization technology simultaneously; Adopt earlier the fine particle in the membrane technique isolated water, adopt the ultraviolet-sterilization technology to kill microorganism in the water again.
Adopt film of the present invention and ultraviolet disinfection combined multiple barrier technique; can adopt membrane technique and Ultraviolet Disinfection simultaneously in the advanced treatment of wastewater field; bring into play their advantages separately; can guarantee that effluent quality satisfies the regulation of national standard; greatly reduce the liquid chlorine dosage in the water body simultaneously; reduced the generation of disinfection byproduct (DBP), improved the ultraviolet delivery capabilities, prolong the cleaning interval of quartz socket tube, greatly weakened the shielding protection effect of particulate matter microorganism.
Embodiment
Example 1: Singapore Chestnut drinking water plant
Day output: 273,000m
3
Advanced treatment process: membrane separation technique and disinfection by ultraviolet light technical combinations
Background:
Chestnut water factory is one of drinking water plant of Singapore's maximum, adopts traditional sand filtration technology.This water factory feels very difficult to the effluent quality that satisfies statutory regulation, is badly in need of the present facility of upgrading.Because close on a wilderness area, water factory need come upgrade-system with the floor space of minimum, so water factory can provide area required more much smaller than existing conventional art.
The present former water of water factory is from Upper Pierce reservoir, and may add the river from the Tebrau river future.The equal turbidity of present former level is 5.4NTU, and average chrominance is a 22Hazen unit.
Solution:
The mode that sees through liquid pump is different with adopting, thereby water factory adopts the water outlet after the design formation vacuum pressure of hydrocone type obtains to filter.Because the siphon design only relies on gravity,, take up an area of and all greatly reductions of working cost so the design of whole water factory is simpler.Compare with traditional technology, reinforced flocculation process is removed colourity and total organic matter (TOC) efficient height, and used flocculation dosage is also lower.Lower dosage has also reduced the expense of handling dense water significantly simultaneously.
The technology general introduction:
Former water, adds aluminium salt then and removes colourity and total organic matter earlier through the fine fack of 1mm from reservoir, adds lime control pH value simultaneously.Water to flocculation basin, enters membrane cisterna after again through run by gravity.Filtration is to finish by water is pumped out from ultra-filtration membrane.This process has adopted the design of hydrocone type, thereby has reduced floor space.The difference of membrane cisterna liquid level and downstream water pit level is 9m.
Whole water factory every day 273,000m
3Aquifer yield only utilized 16 films row, enlarging will be 478 when future, can increase by 12 films row after the 000m3/d treatment capacity, become 28 films row.
Example 2: Beijing north river sewage work's second phase (middle water reuse project)
Day output: 60,000m3/d
Advanced treatment process: membrane technique and disinfection by ultraviolet light technical combinations
The project brief description:
North, Beijing river sewage work is the supporting project of 2008 Beijing Olympic event, this factory's output water is after MBR membrane bioreactor and Ultraviolet Disinfection processing, 10,000 tons of water advance RO, grid system during remaining 50,000 tons of water enter by pipeline, effluent index reaches " city miscellaneous water water quality standard ".
This project has adopted film and this combined multiple barrier degree of depth of disinfection by ultraviolet light water technology, and effluent quality guarantees to satisfy the regulation and the requirement of national standard, greatly reduces the liquid chlorine dosage in the water body simultaneously, has reduced the generation of disinfection byproduct (DBP).
Scheme is concise and to the point
Ultraviolet ray disinfecting system is totally 2 channels, along water (flow) direction two module groups is installed, and the module group contains 20 modules, 8 fluorescent tubes of each module, totally 320 fluorescent tubes.
| Design variable | Suspension content TSS | The 5NTU maximum value) |
| Average discharge | 60,000 m 3/ day | |
| Peak flow | 6.6 ten thousand m 3/ day | |
| The ultraviolet penetration coefficient | 70% (minimum value) |
| The sterilization index | The colibacillus of excrement number is lower than 3/L (30 days geometrical means) | |
| Lectotype selection | ?TROJAN?3000PLUS | Remarks |
| The fluorescent tube model | The low-pressure high-strength ultraviolet lamp | |
| The ultraviolet number of modules | 40 | |
| Fluorescent tube quantity | 320 | Design discharge 6.6 ten thousand m 3/ day |
| Lamp tube service life | ＞12000 hours | Can reach 18000 hours |
| The water channel structure | Totally 1 water channel | 2 module groups are installed |
| Module group structure | 1 module group comprises 20 modules, and each module contains 8 fluorescent tubes | |
| The water channel size | See the ultraviolet layout for details | The about 13m of floor space 2 |
| Total installation of generating capacity | ?86.6KVA | Average service rating is 65.5KW |
The disinfection by ultraviolet light major parts:
| Numbering | Title | Code name | Quantity | Remarks |
| NO1 | Ultraviolet lamp tube | UVL | 320 | The low-pressure high-strength lamp |
| NO2 | The ultraviolet module | UVM | 40 | Form a module group |
| NO3 | System Control Center | SCC | 1 | |
| NO4 | Distribution center | PDC | 1 | |
| NO5 | Automatic cleaning system | CLS | 1 | Online machinery adds the matting mode |
| NO6 | Module support bracket | SRS | 1 | |
| NO7 | Level control dam | WLC | 1 | Keep a constant water level, keep fluorescent tube all to be submerged |
| NO8 | The uitraviolet intensity system of supervision | UV | 1 | Continuous monitoring |
| NO9 | The safety operation work box | Kit-UV | 1 | Comprise face shield, gloves, scavenging solution |
| NO10 | Accessory at random | SPARE PARTS | 1 cover | Comprise fluorescent tube, sleeve pipe, sealing-ring etc. |
Claims (1)
1. film and ultraviolet disinfection combined multiple barrier technique comprise the ultraviolet-sterilization link, and it is characterized in that: it also adopts the membrane permeation link; Described membrane permeation link is positioned at before the ultraviolet-sterilization link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610106675XA CN101108750A (en) | 2006-07-19 | 2006-07-19 | Membrane and ultraviolet disinfection combined multiple barrier technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610106675XA CN101108750A (en) | 2006-07-19 | 2006-07-19 | Membrane and ultraviolet disinfection combined multiple barrier technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101108750A true CN101108750A (en) | 2008-01-23 |
Family
ID=39041045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200610106675XA Pending CN101108750A (en) | 2006-07-19 | 2006-07-19 | Membrane and ultraviolet disinfection combined multiple barrier technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101108750A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336463A (en) * | 2010-07-16 | 2012-02-01 | 福建新大陆科技集团有限公司 | Photochemical high-grade oxidation fluid treating system |
| CN112851040A (en) * | 2021-02-24 | 2021-05-28 | 天津工业大学 | Integrated sewage treatment device |
-
2006
- 2006-07-19 CN CNA200610106675XA patent/CN101108750A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336463A (en) * | 2010-07-16 | 2012-02-01 | 福建新大陆科技集团有限公司 | Photochemical high-grade oxidation fluid treating system |
| CN112851040A (en) * | 2021-02-24 | 2021-05-28 | 天津工业大学 | Integrated sewage treatment device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080123 |